Dr. James Alfred Walker
 

Dr. James Alfred Walker BSc, MSc, PhD

Research Fellow

Email: jaw500@ohm.york.ac.uk
Homepage: http://www.cartesiangp.co.uk/people/jaw
Tel: +44 (0)1904 32 4221
Fax: +44 (0)1904 32 2335
Research Area: Intelligent Systems Group > Bio-Inspired Architectures Lab

About

I am currently a research fellow on the EPSRC funded "PAnDA: Programmable Analogue and Digital Array" project in the Department of Electronics at the University of York under the supervision of Prof. Andy M. Tyrrell. Previously, I was a research associate on the EPSRC funded e-Science pilot project "Meeting the Design Challenges of Next Generation Nano-CMOS Electronics", which was also under the supervision of Prof. Andy M. Tyrrell in the Department of Electronics at the University of York. Prior to the Nano-CMOS project, I was a research student in the Department of Electronics at the University of York under the supervision of Dr Julian Francis Miller. My title of my PhD thesis was "The Automatic Acquisition, Evolution and Re-use of Modules in Cartesian Genetic Programming".

Research Interests

My main research interest is the application of bio-inspired algortihms (especially Cartesian Genetic Programming (CGP)) to real-world problems, primarily in the fields of Evolvable Hardware and Electronic Design Automation. The focus of my research so far has been within the areas of analogue and digital synthesis, design optimisation, re-configureable architectures, fault tolerance and variability aware design. Other areas of research that I am also interested in are image processing and analysis techniques and intelligent robotics.

 

Publications

  • P. Bremner, M. Samie, G. Dragffy, A. Pipe, J.A. Walker and A.M. Tyrrell, Evolving Digital Circuits Using Complex Building Blocks, Proceedings of the 9th International Conference on Evolvable Systems: From Biology to Hardware (ICES), York, September, 2010
  • J.A. Walker, J.A. Hilder and A.M. Tyrrell, Measuring the Performance and Intrinsic Variability of Evolved Circuits, Proceedings of the 9th International Conference on Evolvable Systems: From Biology to Hardware (ICES), York, September, 2010
  • J.A. Walker, Y. Liu, G. Tempesti and A.M. Tyrrell, Automatic Code Generation on a MOVE Processor using Cartesian Genetic Programming, Proceedings of the 9th International Conference on Evolvable Systems: From Biology to Hardware (ICES), York, September, 2010
  • J.A. Hilder, J.A. Walker and A.M. Tyrrell, Use of a Multi-Objective Fitness Function to Improve Cartesian Genetic Programming Circuits, Proceedings of the NASA/ESA Conference on Adaptive Hardware and Systems, 185-191, Anaheim, USA, June, 2010
  • J.A. Walker, R.O. Sinnott, G. Stewart, J.A. Hilder and A.M. Tyrrell, Optimizing Electronic Standard Cell Libraries For Variability Tolerance Through The Nano-CMOS Grid, Philosophical Transactions of the Royal Society A, 368(1925):3967-3981, 2010
  • J.A. Hilder, J.A. Walker and A.M. Tyrrell, Designing Variability Tolerant Logic using Evolutionary Algorithms, 5th International Conference on Ph.D. Research in Microelectronics & Electronics (PRIME), Cork, Ireland, July, 2009
  • Hilder, J., Walker, J. and Tyrrell, A.M., Optimising Variability Tolerant Standard Cell Libraries, 11th IEEE Congress on Evolutionary Computation, 2273-2280, Trondheim, Norway, May, 2009
  • Walker, J., Hilder, J. and Tyrrell, A.M., Towards Evolving Industry-feasible Intrinsic Variability Tolerant CMOS Designs, 11th IEEE Congress on Evolutionary Computation, 1591-1598, Trondheim, Norway, May, 2009
  • Hilder, J., Walker, J. and Tyrrell, A.M., Optimisation of Variability Tolerant Logic Cells using Multiple Voltage Supplies, IEEE Symposium Series on Computational Intelligence, 17-24, Nashville, USA, March, 2009
  • J.A. Walker, K. Voelk, S.L. Smith and J.F. Miller, Parallel Evolution using Multi-chromosome Cartesian Genetic Programming, GPEM: Special Issue on Parallel and Distributed Evolutionary Algorithms, 10(4):417-445, 2009
  • J.A. Walker, J.A. Hilder, and A.M. Tyrrell, Evolving Variability-Tolerant CMOS Designs, 8th International Conference on Evolvable Systems: From Biology to Hardware (ICES 2008), 308-319, Prague, Czech Republic, September, 2008
  • J.A. Walker and J.F. Miller, The Automatic Acquisition, Evolution and Re-use of Modules in Cartesian Genetic Programming, IEEE Transactions on Evolutionary Computation, 12(4):397-417, 1089-778X, August, 2008
  • J Clegg, J A Walker, J F Miller, A New Crossover Technique for Cartesian Genetic Programming, 2007 Genetic and Evolutionary Computation Conference (GECCO), London, July, 2007
  • J.A. Walker and J.F. Miller, Predicting Prime Numbers using Cartesian Genetic Programming, 10th European Conference on Genetic Programming (EuroGP 2007), 205-216, Valencia, Spain, 2007
  • J.A. Walker and J.F. Miller, Solving Real-valued Optimisation Problems using Cartesian Genetic Programming, 2007 Genetic and Evolutionary Computation Conference (GECCO), London, UK, 2007
  • J.A. Walker and J.F. Miller, Changing the Genospace: Solving GA Problems using Cartesian Genetic Programming, 10th European Conference on Genetic Programming (EuroGP 2007), 261-270, Valencia, Spain, 2007
  • J.A. Walker, J.F. Miller and R. Cavill, A Multi-chromosome Approach to Standard and Embedded Cartesian Genetic Programming, 2006 Genetic and Evolutionary Computation Conference (GECCO), 903-910, Seattle, Washington, USA, 2006
  • J.A. Walker and J.F. Miller, Embeddeded Cartesian Genetic Programming and the Lawnmower and Hierarchical-if-and-only-if Problems, 2006 Genetic and Evolutionary Computation Conference (GECCO), 911-918, Seattle, Washington, USA, 2006
  • J.A. Walker and J.F. Miller, Investigating the Performance of Module Acquisition in Cartesian Genetic Programming, 2005 Genetic and Evolutionary Computation Conference (GECCO), 1649-1656, Washington DC, 2005
  • J.A. Walker and J.F. Miller, Improving the Evolvability of Digital Multipliers Using Embedded Cartesian Genetic Programming and Product Reduction, 6th International Conference in Evolvable Systems: From Biology to Hardware (ICES 2005), 131-142, Sitges, Spain, 2005
  • J.A. Walker and J.F. Miller, Evolution and Acquisition of Modules in Cartesian Genetic Programming, 7th European Conference on Genetic programming (EuroGP 2004), 187-197, Coimbra, Portugal, April, 2004

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